CALDER Center

@caldercenter.bsky.social

A project of the American Institutes for Research (@airinforms.bsky.social) and university scholars, committed to analysis of data that informs education policy. Visit us at www.caldercenter.org.

Yup, Vivian and I make the case that we need a federal role in education research and dissemination for empirical evidence to really factor into local decision-making. That doesn't imply that @IES can't be improved, I think it can, but it does serve a crucial role in the education ecosystem!

CALDER Center@caldercenter.bsky.social · 3w ago

📰 New @edweek.org op-ed by CALDER's @cedr.bsky.social & @uvaehd.bsky.social's Vivian Wong: If local leaders are to make evidence-based decisions, federal support for education research is essential to generating and validating the evidence policymakers rely on. Read: www.edweek.org/policy-polit...

📰 New @edweek.org op-ed by CALDER's @cedr.bsky.social & @uvaehd.bsky.social's Vivian Wong: If local leaders are to make evidence-based decisions, federal support for education research is essential to generating and validating the evidence policymakers rely on. Read: www.edweek.org/policy-polit...

Why Local Control Over Education Won't Work Without Federal Support (Opinion)

The Trump administration's retreat leaves local education leaders vulnerable

edweek.org

New CALDER paper tracks math achievement for Texas students from 3rd–9th grade, finding that the COVID-19 pandemic hit the lowest-achieving students hardest, and deepened racial & income divides even among kids who started at the same level. Read 👉 bit.ly/4wh6CNU

A Widening Chasm: The Divergent Paths of High- and Low-Achieving Students in Algebra I After the Pandemic 

By Ben Backes, Michael DeArmond, Elise Dizon-Ross, Dan Goldhaber & Alejandra Salazar 

CALDER Working Paper No. 339-0526 

May 2026 

Abstract 

We follow four cohorts of students in Texas from grades 3 through 9 to identify which factors predict whether students pass the Algebra I end-of-course test by ninth grade. We find that early achievement accounts for most of the variation: racial and socioeconomic gaps in Algebra I completion trace back to differences in third-grade test scores. Because we follow students over time, we can see how the pandemic compounded existing inequalities. First, we find that the pandemic widened racial and socioeconomic gaps within each achievement level--students from disadvantaged groups who started third grade with the same test scores as their more advantaged peers fell further behind than those peers during COVID. Second, the pandemic amplified gaps between achievement levels. The lowest-scoring students in every group experienced steeper declines than their higher-scoring counterparts, with the sharpest losses concentrated among low-achieving students. In short, we find that algebra achievement gaps are rooted in early elementary school and became deeper during the pandemic. Our results underscore the importance of targeting resources to early elementary math instruction, especially for low-achieving students.

We really need to learn a lot more about what constitutes an effective teacher licensure system. Meagan and I discuss (in this brief) what we know and how to move our knowledge about this contentious issue forward so we don't remain stuck in a debate that's been ongoing for about 30 years!

CALDER Center@caldercenter.bsky.social · 3mo ago

Teacher licensure is being debated in nearly every state, with policies moving in different directions. New CALDER & @wheelockpolicybu.bsky.social brief by Meagan Comb & @cedr.bsky.social explains how this moment can be leveraged to improve the evidence guiding decisions. 👉 bit.ly/4tL5qkj

Thanks to everyone who joined us for the four-day school week webinar with Emily Morton and @andrewmcamp.com! If you missed the event, you can view a recording here: caldercenter.org/events/calde...

CALDER Center@caldercenter.bsky.social · 4mo ago

🚨 Today's the day! Join Emily Morton & @andrewmcamp.com at 1 ET for a deep dive into the realities of four-day school week implementation and its effects on teacher recruitment and retention. Register ➡️ bit.ly/4rNbwP3

CALDER Webinar: The Four-Day School Week: New Evidence for District Leaders and Policymakers
Featuring Emily Morton and Andrew Camp

Wednesday, April 22 at 1:00 ET